One of the more interesting tidbits to come from Netflix‘s first quarter report is that the company has grown well over 70% over the past year, bringing its total subscriber base to 23.6 million users. That number means that well over 7% of Americans now have a Netflix subscription, making it bigger than any individual cable company in the country – including Comcast.

Netflix has been on a tear recently, introducing new features, rapidly adding movies to its catalog, and aggressively pushing streaming video as the future of its revenue model. The company reported first-quarter earnings of over $60 million, up from $32 million a year ago.

At the same time, Netflix reported that the second quarter may be lighter than initially predicted. Even so, they expect subscriber growth to continue rapidly, but eventually the company is concerned that getting new subscribers will get harder over time. The company went out of its way to call out competing services like Hulu Plus and Amazon Video-on-Demand as threats to the service’s continued growth.

In order to bolster growth and the strength of its catalog, Netflix has gone out of its way to strike new deals with networks and studios for shows that are currently on-air. Traditionally, the company has managed to get access to shows once they’re released on DVD, but Netflix wants in on some of Hulu’s business and wants to be able to provide new shows after they’ve aired on network television.

The company is also investing in its own original programming. Kevin Spacey recently signed on to bring the service’s first orginal show, “House of Cards,” to Netflix, and the company hopes to bring on additional original content in the near future.

In the end, Netflix is aiming at new content and television shows, as well as movies and video streaming to carry its growth forward. That’s no surprise, but what is interesting is that the company is clearly moving away from traditional disc-by-mail as its bedrock revenue source. The company announced streaming-only plans last year, and has teased new “family plans” for multi-user streaming in the near future. Disc-by-mail may not be going anywhere anytime soon, but Netflix clearly isn’t going to depend on it.